New or old property: which is best in 2025?

Posted by SOCIETE ONYX
11
Oct 11, 2025
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Excerpt: Investing in new property offers energy performance, builder guarantees and lighter taxes, while old property appeals for its attractive prices in Massy, Palaiseau, Chilly-Mazarin.

"Choosing new property in 2025 means banking on peace of mind, energy efficiency and strong guarantees, even if the cost is higher."

New property in 2025 in Massy, Palaiseau and Chilly-Mazarin

The new housing market is still evolving in 2025 with average prices higher than older properties, but buyers enjoy modern comforts and lower energy bills thanks to RE2020 standards. New developments in Massy, Palaiseau and Chilly-Mazarin are in demand, supported by schemes like the PTZ and favourable tax options. Though supply is shrinking, quality and security attract many buyers.

Key benefits of new property

New builds attract thanks to many advantages:

  • Lower notary fees (around 2 to 3% of purchase price)
  • No short-term or medium-term renovations needed
  • Important builder warranties, like the ten-year guarantee, biennial (2 years) and perfect completion (1 year)
  • Superior thermal and acoustic comfort
  • Attractive tax rules and partial property tax relief for 2 years
  • Easier financing with the PTZ, depending on conditions
    See available new housing on Acheter immobilier Massy Palaiseau Chilly-Mazarin.

Pros and cons of older property

Older homes usually cost 20 to 30% less per m² than new, often offering city-center locations and classic architecture. However, buyers should budget for renovations (especially insulation and compliance upgrades). Homes with an F or G energy rating face rental restrictions and potential discounts in 2025. This option suits investors able to add value through refurbishment.

Comparative summary without a table

New builds stand out for their guarantees, tax benefits and energy performance. Older homes remain accessible and well-located but often require extra budget for upgrades and long-term savings. For a wise decision, you can request a free property valuation or consult a local expert.

Which market stands out locally?

In Massy, Palaiseau, Chilly-Mazarin, new properties are the premium choice for buyers seeking modernity and security, while old properties are attractive for location and size-to-price ratio. New transport projects increase the region’s appeal. Meet our team on Nous connaître and see what clients think on Témoignages de nos clients.

Advice from Nicolas Immobilier Estate Agency, Massy, Palaiseau and Chilly-Mazarin

I recommend choosing a new build for a safe, modern home, especially if you want peace of mind. Older properties are a real opportunity for investors or anyone wanting to refurbish and add value over time. Our agency, a local benchmark, will advise you objectively and securely to ensure the best outcome for your real estate project.

Nicolas Benoit, director of Nicolas Immobilier Estate Agency in Massy, Palaiseau and Chilly-Mazarin. More than 1,400 satisfied clients vouch for his professionalism and perfect knowledge of the local market.

key topics:

  • new property
  • free valuation
  • Massy
  • PTZ
  • guarantees
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